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Sprinkler system with automatic pressure relief valve
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Automatic pilot control means for, and method of, operating a water softener system
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Removable element filter assembly having flow preventing means
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Pressure control valves for fuel lines
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Sprinkler heads having valves actuated by separate pressure lines
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Vacuum breaker valve
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Backflow prevention device with improved pressure sensing means
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Motorized control valves
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Tank filling valve
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Periodically driven rotary valve control
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Combination rate-of-flow and modulating flow-controlled valve and water system
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Backflow prevention device and relief valve control
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Tank filling valve
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Multiple lubrication control
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Long-range rotary water sprinkler
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Method of pretreating a polypropylene diaphragm to render it more flexible
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Bulk loading valve and control means therefor
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Valves and automatic controls
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Fluid distribution control system
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Automatic control means for a water softener system
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